Schneider Electric CC112.0 Overload Relay Thermal Unit

Schneider Electric CC112.0 Thermal Unit is a melting-alloy, Class 20 thermal overload unit for CC-series overload relays and motor starters. This Type S thermal unit complements the CC protection family by delivering a defined Class 20 trip characteristic when overload heat accumulates in the element. As the CC112.0 designation implies, it is the replacement thermal unit used with CC-series overload relays to restore motor protection after a unit failure or wear. The melting-alloy element trips when a preset temperature is reached, aligning with standard overload protection practices and the CC relay’s trip curves. Designed for industrial motor-control panels, CC112.0 units are specified to match the CC relay’s protection curve, ensuring consistent response to overload conditions across a range of small to mid-size motors. The unit is marketed under the Square D brand by Schneider Electric and is compatible with CC-series relays and starter combinations, offering a straightforward maintenance path for panel refurbishments without replacing the entire relay assembly. In practice, Class 20 units like CC112.0 provide relatively faster response to overload than higher-trip classes, balancing motor protection with nuisance trips in standard industrial applications.